Wikipedia
Wikipedia is a free, online encyclopedia written and maintained by a community of volunteers around the world. It contains over 50 million articles in hundreds of languages.
encyclopedia
reference
education
wiki
knowledge-base
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What is Wikipedia?
Wikipedia is a free, multilingual online encyclopedia written and maintained by a community of volunteers around the world. It is the largest and most popular general reference work on the Internet.
Wikipedia was launched in 2001 by Jimmy Wales and Larry Sanger. It is owned and supported by the Wikimedia Foundation, a non-profit organization funded primarily through donations. Anyone can edit Wikipedia articles, so the content is continually updated by its user community.
As of 2022, the English Wikipedia contains over 6.5 million articles, making it the largest language edition. Other major language editions include German, French, Spanish, Russian and Chinese. In total, Wikipedia contains over 50 million articles spanning over 300 languages.
The goal of Wikipedia is to provide free access to reliable, neutral information on a wide variety of subjects. While quality varies across articles, the most popular ones are generally well-referenced and regularly maintained. Studies have found Wikipedia to be as accurate as traditional encyclopedias, but it continues to face challenges around information credibility.
Overall, Wikipedia is an invaluable resource for basic information on almost any topic imaginable. It empowers people around the world to freely share in the sum of all human knowledge.
Wikipedia Features
Features
- User-generated content
- Multilingual interface
- Searchable articles
- Editable by volunteers
- Free access
- Content moderation
- Mobile app availability
Pricing
- Free
- Open Source
Pros
Massive breadth of knowledge
Constantly updated
Neutral point of view
Reliable sources required
Available in many languages
Completely free to access and use
Cons
Potential for bias
Inaccuracies possible
Limited depth/detail in some articles
Open editing allows vandalism
Not all topics covered extensively
Official Links
Reviews & Ratings
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Top Education & Reference and Encyclopedias and other similar apps like Wikipedia
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Everipedia
Everipedia is an online encyclopedia that was created in 2015 as an alternative to Wikipedia. It allows anyone to create and edit articles on any topic, with the goal of democratizing access to knowledge and information.Unlike Wikipedia, Everipedia is built on the EOS blockchain which means all contributions are recorded...
Newslines
Newslines is a news aggregator application that curates top and trending news stories from hundreds of trusted media sources and publications. It serves as a one-stop platform to stay up-to-date with the latest news and developments across various topics such as politics, technology, science, health, business, entertainment, sports, and more.Some...
Stubia
Stubia is an open-source stubbing and mocking framework for testing code dependencies during development. It allows developers to easily create simulated responses for services, databases, or other systems that their code interacts with. This enables you to test your code without having to set up complex test doubles or rely...
XOWA
XOWA is an open source program that enables users to view Wikipedia articles offline on their desktop or laptop computers. It is maintained by volunteers and allows users to download copies of Wikipedia content in various languages to store and browse without requiring an internet connection. This provides users with...
Infogalactic
Infogalactic is an alternative online encyclopedia website launched in 2016 that aims to improve on Wikipedia by focusing more on objectivity and lack of bias in its content. It builds on the wiki model that allows anyone to edit articles, but implements some key changes:- Instead of neutral point of...
Priam
Priam is an open-source platform that provides many of the same features and services as Amazon Web Services (AWS). It allows users to deploy and manage applications across virtual or physical machines.Some key capabilities and components of Priam include:Priam Compute - Deploy and manage virtual machines similar to Amazon EC2Priam...
Kiwix
Kiwix is an open-source offline content reader developed by the Kiwix project. It allows users to download entire websites or digital libraries for offline browsing and reading without requiring an internet connection.Some of the key features of Kiwix include:Downloads and indexes web content like Wikipedia, Wiktionary, Project Gutenberg libraries, educational...
Worldometers
Worldometers is a popular statistics website that provides real-time world statistics on various topics including population, births, deaths, economics, sports, and more. Some key features of Worldometers:Real-time counters for world population, births, deaths, and other demographic dataDetailed COVID-19 statistics including confirmed cases, deaths, recoveries by countryEconomic data such as GDP,...
WikiCFP
WikiCFP is an open and collaborative platform for the academic community to share information about upcoming conferences across various disciplines and fields of study. It operates as a wiki, allowing any user to view, edit, and add content about CFPs (Calls For Papers) for upcoming academic conferences and events.The goal...
YouTube Logos
YouTube Logos is a free online tool that allows users to easily create custom logos and graphics for YouTube channels and videos. It is designed to provide all the necessary options for making professional YouTube channel art without requiring graphic design expertise.The service offers a library of icons, fonts, templates,...
WikiLinks
WikiLinks is a free, open source wiki software released under the GPL license. It allows groups to easily create, organize, and share information in a collaborative environment.Some key features of WikiLinks include:Simple, intuitive interface - Easy for anyone to start contributing content right awayReal-time collaboration - See live edits from...
Oppia
Oppia is an open-source learning platform developed by Oppia Foundation as a free alternative to proprietary e-learning solutions. It allows educators and domain experts to easily create interactive online lessons called 'explorations' without needing coding experience.Some key features of Oppia include:Visual editor for building engaging content like quizzes, simulations, feedback,...
World History Encyclopedia
World History Encyclopedia is a non-profit organization dedicated to providing reliable, high-quality information on world history topics. Founded in 2009, it has become one of the most popular history websites online.The encyclopedia covers all periods of world history, from prehistory and ancient history through to the 21st century. It has...
Gamepedia.com
Gamepedia.com is a wiki-based website focused on video games. It features thousands of wikis providing detailed information, guides, walkthroughs, news, images, videos and more about video games across all major gaming platforms including PC, console, and mobile. The site serves as a comprehensive resource and community hub for gaming enthusiasts....
WikiTaxi
WikiTaxi is an open-source, web-based application designed for teams to organize information and collaborate on projects effectively.It provides a variety of tools including:Wikis - for creating and structuring documentation, guides, notes, etc.To-Do Lists - to define, assign, and track tasks and action itemsForums - for team discussions and updatesCalendars -...
Okawix
Okawix is an open-source wiki software application written in PHP. It allows users to freely create and edit web page content using any web browser. Okawix focuses on ease of use, standards compliance, and extensibility.Some key features of Okawix include:WYSIWYG editing using CKEditorPage history showing differences between revisionsAccess control and...
Metapedia
Metapedia is an online wiki-based encyclopedia with openly far-right, white nationalist, and neo-Nazi perspectives. Launched in 2006 in Sweden, it describes itself as focusing on European culture, art, science, philosophy, and politics. However, Metapedia has faced strong criticism for promoting racism, antisemitism, Holocaust denial, and other forms of historical revisionism.Many...
Scholarpedia
Scholarpedia is an online encyclopedia with the goal of providing detailed yet accessible explanations for topics across all fields of academic research. It aims to have articles written and peer-reviewed by experts to ensure high quality and authoritative information.Unlike Wikipedia which allows anyone to edit, Scholarpedia has an editorial process...
Encyclopædia Britannica
Encyclopædia Britannica is one of the most widely-recognized and trusted online encyclopedias. First published in 1768 in Edinburgh, Scotland, Britannica has evolved over the past two centuries to become an authoritative source of general knowledge and reference information on the internet.Britannica's online encyclopedia features over 120,000 articles covering nearly every...
WikiSpooks.com
WikiSpooks.com is an alternative wiki site with a specific focus on intelligence agencies, covert operations, deep politics, and issues often overlooked or under-reported in the mainstream media. The site provides in-depth information, analysis, and commentary on topics such as:Intelligence agencies like the CIA, MI6, MossadCovert operations, black ops, psyopsDeep state...
Alchetron
Alchetron is an open-source knowledge base and content hosting platform. It provides users with the ability to create, edit, and share content in a collaborative, wiki-style manner through a user friendly web interface.Some key features of Alchetron include:Intuitive WYSIWYG editor for easily creating and formatting content pagesSupport for rich content...
WikiGalaxy
WikiGalaxy is an open, web-based knowledge base platform that allows users to collaboratively create, edit, link, and organize wiki articles on various topics. The goal of WikiGalaxy is to be an extensive crowd-sourced repository of knowledge and information.Some key features of WikiGalaxy include:User-friendly WYSIWYG editor for creating and formatting wiki...
WikiIndex
WikiIndex is an open source knowledge base and document management software built on wiki technology. It provides an easy way for teams to collaboratively create, edit, link and organize content. Key features of WikiIndex include:Intuitive wiki markup for formatting and linking pagesPowerful search and navigation toolsVersion control and page historyUser...
Boopsie
Boopsie is a cloud-based mobile app builder designed specifically to help libraries engage with their patrons in the mobile space. It allows libraries to easily build, customize, and publish native mobile apps for iOS and Android that promote library programs, events, services, and resources to users on their mobile devices.The...
Evopedia
Evopedia is an online encyclopedia that utilizes artificial intelligence to automatically generate and expand on article content. It has a collaborative, community-driven model that allows anyone to contribute articles, similar to Wikipedia.However, unlike Wikipedia, Evopedia uses natural language processing algorithms to analyze contributed articles and generate additional related content. This...
Kiwix-serve
Kiwix-serve is a lightweight web server application designed to serve content from the Kiwix offline reader over HTTP. It provides a simple way to make ZIM files and other content opened in Kiwix available on a local network or the internet for end users to access through a web browser.Some...
MyWikis
MyWikis is an open source wiki and knowledge base software built using PHP and MySQL. It allows individuals and teams to set up private wikis for organizing content, notes, how-tos, FAQs, and more.Key features of MyWikis include:Lightweight and easy to install - requires a PHP/MySQL hosting environment.User roles and permissions...
Encyclopedia.com
Encyclopedia.com is an ad-free, subscription-free site that gives users access to content from over 100 encyclopedias, dictionaries, and other reference works. It combines material from leading reference sources, including Columbia Encyclopedia, Wikipedia, and other reputable content providers to offer overviews, definitions, images, and more on over 5 million topics.The website...
Referata
Referata is an open-source wiki and knowledge base software built using PHP and MySQL. It was created to provide an easy-to-use platform for teams to collaborate, share information, and build a searchable repository of documentation and institutional knowledge.Some key features of Referata include:WYSIWYG editor for easy editing without learning wiki...
The full wiki
The Full Wiki is an online wiki encyclopedia that aggregates content from various wiki projects into one unified resource. It allows users to search through and browse a collection of wiki content in one place.The goal of The Full Wiki is to include the complete and full content from established...
Wiki2touch
Wiki2touch is an open source mobile application that provides access to Wikipedia in a touch-friendly user interface. It is designed specifically for touchscreen devices like smartphones and tablets.The key features of Wiki2touch include:Intuitive touch interface for browsing Wikipedia articlesSearch Wikipedia articles by title, content, categories, etc.View images and media inline...
Logopedia
Logopedia is a free, open-source software application designed specifically for speech-language pathologists, special education teachers, and other professionals who provide speech therapy services. It was created to help streamline therapy planning, data collection, documentation, and progress monitoring.Key features of Logopedia include:Customizable therapy activities and worksheetsData tracking for multiple students and...
The WikiFix
The WikiFix is a web application designed to streamline the process of contributing to Wikipedia. It allows users to easily submit edits to Wikipedia articles and then tracks those edits as they go through Wikipedia's peer review process.One of the main barriers for new editors on Wikipedia is that the...
Wapedia
Wapedia is an online encyclopedia and knowledge base launched in 2006. It has similarities to Wikipedia in that it allows users to search for articles and information on a wide variety of topics. However, there are some key differences between the two services:- Wapedia includes more multimedia in its articles...
WikiExplorer
WikiExplorer is an open-source knowledge discovery and management application developed by Emilio Ferrara and his research group. It provides users with an intuitive and interactive interface to visually explore Wikipedia in a graph view.Key features of WikiExplorer include:Graph visualization of Wikipedia articles and their connectionsAbility to search for and navigate...
WikiDroyd
WikiDroyd is an Android application designed specifically for accessing and editing Wikipedia. It allows users to seamlessly access Wikipedia whether they are online or offline. The app syncs with Wikipedia servers regularly to pull down updated articles, images, and other content for offline viewing at any time.Some key features of...
Citizendium
Citizendium is an open, wiki-based online encyclopedia that was launched in 2007 as an alternative to Wikipedia. It was founded by Larry Sanger, who had previously co-founded Wikipedia in 2001.The key difference between Citizendium and Wikipedia is its focus on expert curation. Citizendium aims to have all articles written and...
Libregamewiki
Libregamewiki is a wiki that focuses on providing detailed information, guides, and documentation for free and open source video games. Some key aspects of Libregamewiki include:Game profiles - Each game has its own page covering genre, platforms, developers, history, similar games, etc.Walkthroughs & strategies - Step-by-step guides to help users...
Wikero
Wikero is an open-source desktop wiki application developed in Java that makes it easy for users to create a personal wiki to organize information on their computer. Some key features of Wikero include:Intuitive wiki-style formatting and linking between pagesTagging and categories for organizing contentBasic text formatting optionsSearch and navigation through...
Wikifur
Wikifur is an open, community-driven wiki focused on providing information and resources related to the furry fandom and culture. Some key aspects covered on Wikifur include:Furry conventions and conference events around the worldNotable furry artists, writers, podcasters, and community personalitiesFurry characters, species, lore, and notable works of furry fiction or...
Matterwiki
Matterwiki is an open-source knowledge base and wiki software designed for businesses and teams to organize information and collaborate. As a self-hosted solution, Matterwiki gives you full control and customization over your knowledge base.With Matterwiki, teams can create pages, documents, manuals, FAQs, and more. Robust document management features allow you...
Encyclopedia of Earth
The Encyclopedia of Earth is an online reference work published by the Encyclopedia of Life Support Systems (EOLSS), which is an organization that compiles various online encyclopedias related to global sustainability issues. The Encyclopedia of Earth specifically focuses on providing information about the Earth's natural environments and systems, their interactions...
Metacademy
Metacademy is an online learning platform designed to help users efficiently learn concepts from fields like computer science, physics, mathematics, and more. Its key feature is the concept graph, which structures concepts and their dependencies, showing users what they need to learn first in order to understand more advanced topics.When...
Lunyr
Lunyr is a decentralized knowledge base and peer-to-peer network built on the Ethereum blockchain. Its goal is to democratize access to knowledge and information by rewarding users with LUN tokens for contributing quality articles, reviews, edits, and commentary.Unlike centralized platforms like Wikipedia, Lunyr has no central authority or ownership. Content...
Wikipedia.moesalih
wikipedia.moesalih is an open source wiki software and website that focuses on health topics. It allows users to create wikis related to medicine, diseases, treatments, anatomy, public health, and other areas of health and medicine.The goal of wikipedia.moesalih is to provide a centralized platform for health professionals, medical students, patients,...
Encyclopaedia of Mathematics
The Encyclopaedia of Mathematics is a massive online compendium of mathematical knowledge first published in 2002. Spanning over 8,000 extensive articles on topics from abstract algebra and number theory to statistics and more, it serves as one of the most comprehensive references on mathematics available today.Originally published in book form...
Wikiless
Wikiless is an open-source, decentralized wiki software project that serves as an alternative to centralized platforms like Wikipedia. Instead of storing wiki data on centralized servers controlled by a single entity, Wikiless uses peer-to-peer technology to distribute wikis across nodes in a decentralized network.This means no single person, company, or...
HandWiki
HandWiki is an online, wiki-based encyclopedia that allows anyone to edit and contribute content on a wide range of academic topics. Launched in 2018, it has the goal of providing accessible and understandable explanations of concepts across disciplines like science, engineering, humanities and more.Like Wikipedia, HandWiki relies on crowdsourcing from...
